patch-2.4.6 linux/drivers/acpi/ospm/system/sm.c

• Lines: 331
• Date: Wed Jun 20 17:47:40 2001
• Orig file: v2.4.5/linux/drivers/acpi/ospm/system/sm.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.5/linux/drivers/acpi/ospm/system/sm.c linux/drivers/acpi/ospm/system/sm.c
@@ -0,0 +1,330 @@
+/*****************************************************************************
+ *
+ * Module Name: sm.c
+ *   $Revision: 16 $
+ *
+ *****************************************************************************/
+
+/*
+ *  Copyright (C) 2000, 2001 Andrew Grover
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <acpi.h>
+#include "sm.h"
+
+
+#define _COMPONENT		ACPI_SYSTEM
+	MODULE_NAME 		("sm")
+
+
+/****************************************************************************
+ *                            Internal Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ *
+ * FUNCTION:	sm_print
+ *
+ * PARAMETERS:	
+ *
+ * RETURN:	
+ *
+ * DESCRIPTION: Prints out information on a specific system.
+ *
+ ****************************************************************************/
+
+void
+sm_print (
+	SM_CONTEXT		*system)
+{
+
+	return;
+}
+
+
+/****************************************************************************
+ *
+ * FUNCTION:	sm_add_device
+ *
+ * PARAMETERS:	
+ *
+ * RETURN:	
+ *
+ * DESCRIPTION:
+ *
+ ****************************************************************************/
+
+ACPI_STATUS
+sm_add_device(
+	BM_HANDLE		device_handle,
+	void			**context)
+{
+	ACPI_STATUS 		status = AE_OK;
+	BM_DEVICE		*device = NULL;
+	SM_CONTEXT		*system = NULL;
+	u8			i, type_a, type_b;
+
+
+	if (!context || *context) {
+		return(AE_BAD_PARAMETER);
+	}
+
+	/*
+	 * Allocate a new SM_CONTEXT structure.
+	 */
+	system = acpi_os_callocate(sizeof(SM_CONTEXT));
+	if (!system) {
+		return(AE_NO_MEMORY);
+	}
+
+	/*
+	 * Get information on this device.
+	 */
+	status = bm_get_device_info(device_handle, &device);
+	if (ACPI_FAILURE(status)) {
+		goto end;
+	}
+
+	system->device_handle = device->handle;
+	system->acpi_handle = device->acpi_handle;
+
+	/*
+	 * Sx States:
+	 * ----------
+	 * Figure out which Sx states are supported.
+	 */
+	for (i=0; i<SM_MAX_SYSTEM_STATES; i++) {
+		if (ACPI_SUCCESS(acpi_hw_obtain_sleep_type_register_data(
+			i,
+			&type_a,
+			&type_b))) {
+			system->states[i] = TRUE;
+		}
+	}
+
+	status = sm_osl_add_device(system);
+	if (ACPI_FAILURE(status)) {
+		goto end;
+	}
+
+	*context = system;
+
+	sm_print(system);
+
+end:
+	if (ACPI_FAILURE(status)) {
+		acpi_os_free(system);
+	}
+
+	return(status);
+}
+
+
+/****************************************************************************
+ *
+ * FUNCTION:	sm_remove_device
+ *
+ * PARAMETERS:	
+ *
+ * RETURN:	
+ *
+ * DESCRIPTION:
+ *
+ ****************************************************************************/
+
+ACPI_STATUS
+sm_remove_device (
+	void			**context)
+{
+	ACPI_STATUS 		status = AE_OK;
+	SM_CONTEXT		*system = NULL;
+
+	if (!context || !*context) {
+		return(AE_BAD_PARAMETER);
+	}
+
+	system = (SM_CONTEXT*)*context;
+
+	status = sm_osl_remove_device(system);
+
+	acpi_os_free(system);
+
+	*context = NULL;
+
+	return(status);
+}
+
+
+/****************************************************************************
+ *                             External Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ *
+ * FUNCTION:	sm_initialize
+ *
+ * PARAMETERS:	<none>
+ *
+ * RETURN:	
+ *
+ * DESCRIPTION:
+ *
+ ****************************************************************************/
+
+ACPI_STATUS
+sm_initialize (void)
+{
+	ACPI_STATUS		status = AE_OK;
+	BM_DEVICE_ID		criteria;
+	BM_DRIVER		driver;
+
+	MEMSET(&criteria, 0, sizeof(BM_DEVICE_ID));
+	MEMSET(&driver, 0, sizeof(BM_DRIVER));
+
+	/*
+	 * Register driver for the System device.
+	 */
+	criteria.type = BM_TYPE_SYSTEM;
+
+	driver.notify = &sm_notify;
+	driver.request = &sm_request;
+
+	status = bm_register_driver(&criteria, &driver);
+
+	return(status);
+}
+
+
+/****************************************************************************
+ *
+ * FUNCTION:	sm_terminate
+ *
+ * PARAMETERS:	<none>
+ *
+ * RETURN:	
+ *
+ * DESCRIPTION:
+ *
+ ****************************************************************************/
+
+ACPI_STATUS
+sm_terminate (void)
+{
+	ACPI_STATUS 		status = AE_OK;
+	BM_DEVICE_ID		criteria;
+	BM_DRIVER		driver;
+
+	MEMSET(&criteria, 0, sizeof(BM_DEVICE_ID));
+	MEMSET(&driver, 0, sizeof(BM_DRIVER));
+
+	/*
+	 * Unregister driver for System devices.
+	 */
+	criteria.type = BM_TYPE_SYSTEM;
+
+	driver.notify = &sm_notify;
+	driver.request = &sm_request;
+
+	status = bm_unregister_driver(&criteria, &driver);
+
+	return(status);
+}
+
+
+/*****************************************************************************
+ *
+ * FUNCTION:	sm_notify
+ *
+ * PARAMETERS:	<none>
+ *
+ * RETURN:	
+ *
+ * DESCRIPTION:
+ *
+ ****************************************************************************/
+ACPI_STATUS
+sm_notify (
+	BM_NOTIFY		notify_type,
+	BM_HANDLE		device_handle,
+	void			**context)
+{
+	ACPI_STATUS 		status = AE_OK;
+
+	if (!context) {
+		return(AE_BAD_PARAMETER);
+	}
+
+	switch (notify_type) {
+
+	case BM_NOTIFY_DEVICE_ADDED:
+		status = sm_add_device(device_handle, context);
+		break;
+
+	case BM_NOTIFY_DEVICE_REMOVED:
+		status = sm_remove_device(context);
+		break;
+
+	default:
+		status = AE_SUPPORT;
+		break;
+	}
+
+	return(status);
+}
+
+
+/****************************************************************************
+ *
+ * FUNCTION:	sm_request
+ *
+ * PARAMETERS:	
+ *
+ * RETURN:	
+ *
+ * DESCRIPTION:
+ *
+ ****************************************************************************/
+
+ACPI_STATUS
+sm_request (
+	BM_REQUEST		*request,
+	void			*context)
+{
+	ACPI_STATUS 		status = AE_OK;
+
+	/*
+	 * Must have a valid request structure and context.
+	 */
+	if (!request || !context) {
+		return(AE_BAD_PARAMETER);
+	}
+
+	/*
+	 * Handle Request:
+	 * ---------------
+	 */
+	switch (request->command) {
+
+	default:
+		status = AE_SUPPORT;
+		break;
+	}
+
+	request->status = status;
+
+	return(status);
+}